Hbisteich zumsteg



UNITED STATES PATENT OFFICE HEINRICH ZUMSTEG, OF KULM, AARGAU, SWITZERLAND, ASSIGNOR TO A'DOLF KARRER, OF SAME PLACE.

MUSIC-BOX.

SPECIPICATIQN' forming part of Letters Patent No. 355,244, dated December 28, 1836.

Application filed July 24, 1886.

To aZZ whom, it 71mg concern:

Be it known that I, Hnrnnien ZUMSTEG, a citizen of Switzerland, residing at Kuhn, in the canton of Aargau, Switzerland, have invented certain new and useful Improvements in the Mechanism of Musical Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The object of my invention is to obtain a four to five times longer duration of playing of musical boxes than has hitherto been attained. I obtain this effect in the following way, as illustrated by the accompanying drawings, in whieh Figure 1 represents the top view of the whole mechanism; Figs. 2, 3, and 4, details.

Prior to my invention music-boxes have been provided with a spring-box connected to the tune-cylinder by a single pair of gearwheels, and when it was desired to increase the length of time for which the music would play without winding the spring up again, two or more spring-boxes were applied to the tune-cylinder.

In carrying out my presentinvention I make use of a single spring-box of about the ordinary size, and I couple this springbox to the tune-barrel by means of an intermediate series or train of toothed gearing, as hereinafter more fully described. This train of gearing makes the springbox turn very slowly in proportion to the tune'barrel. The speed of the tune-barrel. is regulated by an ordinary fly-governor, so that while the tune-barrel turns at the usual speed, the spring-box turns very slowly, and its action upon the barrel is continued over a much longer period. This deviceis applicable to all music-boxes at present constructed, and does not oblige any changes being made in the ordinary playing mechanism.

M for the change of music-pieces.

Serial No. 208,955. (No model.)

soundingthe i'useewheel q on pinion 4', which is driven by cog-wheel in through pinion s and cogwhcel t. I

The bracket A is provided with a stepping arrangement composed of the levers B and C, acting on the pin D, which runs in the groove E, Fig. 4., of the wheel at, and catches into the notch E, stopping the mechanism at the end of a piece of music.

The bracket F is provided with tune-changing mechanism composed of the lever G and sliding bolt H, which acts upon the ratchetwheel J,o11 which sits a cam, I1, giving asmall sliding motion to the cylinder a through pin The spring N reacts upon the cam L, and brings the cylinder back to its first position ai'tereach revo lution of the cam or ratchet wheel J.

iVhat I claim as my inventionis-- The combination of a single spring inclosed in a box and provided with the spur-wheel c, an intermediate shaft provided with the spurwheel t, and the pinion g,gearing into wheel 0,

a tune-cylinder provided with the spur-wheel m, and the long pinion 7t, gearing into wheels m and i7, thereby increasing the length of time for which the cylinder will be turned by the spring.

In testimony whereof I aflixmy signature in presence of two witnesses.

HEINRICH ZUMSTEG.

Vitnesses:

W. BARRAS, J times A. BOURRY. 

